You know what they say: you never get a second chance to make a first impression. These days it's most likely that impression will be online. In this piece, we consider the top five mistakes businesses make online that leave a bad taste in customers' mouths.

Appcelerator Raises $15 Million for Development

BEST PRACTICES SERIES

Appcelerator, Inc. -- a platform to create apps for mobile devices, tablets, and desktops -- garnered a $15 million endowment in a third round of funding. This latest deal gives the company a total $31.5 million investment.

The round was led by Mayfield Fund, Red Hat, and Translink Capital, and included existing investors eBay, Sierra Ventures, and Storm Ventures.

To date, there have been approximately 30,000 apps developed on Appcelerator's Titanium platform. Appcelerator offers several products in its Titanium suite through four freemium developer plans: Community, Indie, Professional, and Enterprise.